package com.ruoyi.common.utils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;
import java.util.Date;
import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 * 
 * @author ruoyi
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils
{
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM", 
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     * 
     * @return Date() 当前日期
     */
    public static Date getNowDate()
    {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     * 
     * @return String
     */
    public static String getDate()
    {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime()
    {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow()
    {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format)
    {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date)
    {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date)
    {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts)
    {
        try
        {
            return new SimpleDateFormat(format).parse(ts);
        }
        catch (ParseException e)
        {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str)
    {
        if (str == null)
        {
            return null;
        }
        try
        {
            return parseDate(str.toString(), parsePatterns);
        }
        catch (ParseException e)
        {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate()
    {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算相差天数
     */
    public static int differentDaysByMillisecond(Date date1, Date date2)
    {
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate)
    {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 计算两个时间差
     */
    public static Long getDatePoorPass(Date endDate, Date nowDate)
    {
        // 获得两个时间的秒时间差异
        long diff = (endDate.getTime() - nowDate.getTime()) / 1000;
        return Math.abs(diff);
    }

    /**
     * 增加 LocalDateTime ==> Date
     */
    public static Date toDate(LocalDateTime temporalAccessor)
    {
        ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 增加 LocalDate ==> Date
     */
    public static Date toDate(LocalDate temporalAccessor)
    {
        LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
        ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     *
     * @param str 5/23/22 21:20
     * @param format M/dd/yy HH:mm
     * @return
     */
    public static Date strToDate(String str, String format) {
        Date date = null;
        SimpleDateFormat inputFormat = new SimpleDateFormat(format);
        try {
            date = inputFormat.parse(str);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }

    /**
     * 将指定时间格式的数据转化为秒
     * @param time 任意时间
     * @param format 指定格式
     * @return 输出秒
     * @throws ParseException 抛出异常
     */
    public static Long TimeToSecondsConverter(String time, String format) {
        SimpleDateFormat formatter = new SimpleDateFormat(format);
        Date date = null;
        try {
            date = formatter.parse(time);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
        long seconds;
        seconds = date.getTime() / 1000;
        return seconds;
    }

    /**
     * @Author: ljh
     * @Description:获取任意天后的时间
     * @DateTime: 18:52 2022/11/23
     * @Params: day 1表示后一天 -1表示前一天
     * @Return
     */
    public static String getDay(int day){
        Calendar calendar2 = Calendar.getInstance();
        SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        calendar2.add(Calendar.DAY_OF_MONTH, day);
        String date = sdf2.format(calendar2.getTime());
        return date;
    }


    /**
     * @Author: ljh
     * @Description:获取任意月后的时间
     * @DateTime: 18:52 2022/11/23
     * @Params: mon 1表示后一个月 -1表示前一个月
     * @Return
     */
    public static String getMon(int mon){
        Calendar calendar2 = Calendar.getInstance();
        SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        calendar2.add(Calendar.MONTH, mon);
        String date = sdf2.format(calendar2.getTime());
        return date;
    }

    // n 个月前
    public static String minusMonths(String specifiedDateTimeStr ,int mon){
        // 设定日期时间格式
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        // 指定日期时间
        LocalDateTime specifiedDateTime = LocalDateTime.parse(specifiedDateTimeStr, formatter);
        // 计算前两个月
        LocalDateTime twoMonthsBefore = specifiedDateTime.minusMonths(mon);
        return twoMonthsBefore.format(formatter);
    }

    // n 个月后
    public static String plusMonths(String specifiedDateTimeStr ,int mon){
        // 设定日期时间格式
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        // 指定日期时间
        LocalDateTime specifiedDateTime = LocalDateTime.parse(specifiedDateTimeStr, formatter);
        // 计算后两个月
        LocalDateTime twoMonthsAfter = specifiedDateTime.plusMonths(mon);
        return twoMonthsAfter.format(formatter);
    }


    /**
     * @Author: ljh
     * @Description: 获取任意年后的时间
     * @DateTime: 18:52 2022/11/23
     * @Params: year 1表示后一年 -1表示前一年
     * @Return
     */
    public static String getYear(int year){
        Calendar calendar2 = Calendar.getInstance();
        SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        calendar2.add(Calendar.YEAR, year);
        String date = sdf2.format(calendar2.getTime());
        return date;
    }

    public static Long StrToNum(String timeString) {
        SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
        Date date = null;
        try {
            date = formatter.parse(timeString);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        int hours = calendar.get(Calendar.HOUR_OF_DAY);//24小时制
        int minutes = calendar.get(Calendar.MINUTE);
        int seconds = calendar.get(Calendar.SECOND);
        return (long) (hours * 60 * 60 + minutes * 60 + seconds);
    }
}
